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masto.ninja Mastodon hosted on masto.ninja

This is a general-purpose instance, with a small community of English and Japanese speaking users. Registration is currently closed, but invites can be obtained from existing users.

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What is Mastodon?

Mastodon is a social network based on open web protocols and free, open-source software. It is decentralized like e-mail.

Administered by:

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Built for real conversation

With 500 characters at your disposal and support for granular content and media warnings, you can express yourself the way you want to.

You’re a person, not a product

Mastodon is not a commercial network. No advertising, no data mining, no walled gardens. There is no central authority.

Always within reach

Multiple apps for iOS, Android, and other platforms thanks to a developer-friendly API ecosystem allow you to keep up with your friends anywhere.

A more humane approach

Learning from failures of other networks, Mastodon aims to make ethical design choices to combat the misuse of social media.

Learn more